Key holder



FIG. 1 is a front elevaional view of a key holder showing my new design.

FIG. 2, is a rear elevational view thereof.

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5, is a bottom plan view thereof; and

FIG. 6, is a top plan view thereof.

The ornamental design for a key holder, as shown.